Al Rios with the city of Greeley works to clear trash that has collected beneath the bridge on 11th Avenue over the Poudre River in Greeley, where homeless residents frequently congregate. Police, along with other city personnel, cleared the area along with four others on Thursday morning. Greeley police Sgt. Joe Tymkowych said police do this at irregular intervals, whenever it's needed. He said concern for the health of the homeless population drives the decision, along with worries about liability for the city. He said police provide the homeless residents with information about resources for help. "This is a positive thing for us," he said. "We're trying to get them relocated and provide them with help they can use."